參數(shù)資料
型號: AT89C51ID2-SLRUM
廠商: Atmel
文件頁數(shù): 134/157頁
文件大小: 0K
描述: IC 8051 MCU 64K FLASH 44-PLCC
產(chǎn)品培訓模塊: MCU Product Line Introduction
標準包裝: 500
系列: 89C
核心處理器: 8051
芯體尺寸: 8-位
速度: 60MHz
連通性: I²C,SPI,UART/USART
外圍設(shè)備: POR,PWM,WDT
輸入/輸出數(shù): 34
程序存儲器容量: 64KB(64K x 8)
程序存儲器類型: 閃存
EEPROM 大?。?/td> 2K x 8
RAM 容量: 2K x 8
電壓 - 電源 (Vcc/Vdd): 2.7 V ~ 5.5 V
振蕩器型: 外部
工作溫度: -40°C ~ 85°C
封裝/外殼: 44-LCC(J 形引線)
包裝: 標準包裝
其它名稱: AT89C51ID2-SLRUMDKR
78
AT89C51ID2
4289C–8051–11/05
Table 60. KBE Register
KBE-Keyboard Input Enable Register (9Dh)
Reset Value= 0000 0000b
76
543
210
KBE7
KBE6
KBE5
KBE4
KBE3
KBE2
KBE1
KBE0
Bit
Number
Bit
Mnemonic
Description
7
KBE7
Keyboard line 7 Enable bit
Cleared to enable standard I/O pin.
Set to enable KBF. 7 bit in KBF register to generate an interrupt request.
6
KBE6
Keyboard line 6 Enable bit
Cleared to enable standard I/O pin.
Set to enable KBF. 6 bit in KBF register to generate an interrupt request.
5
KBE5
Keyboard line 5 Enable bit
Cleared to enable standard I/O pin.
Set to enable KBF. 5 bit in KBF register to generate an interrupt request.
4
KBE4
Keyboard line 4 Enable bit
Cleared to enable standard I/O pin.
Set to enable KBF. 4 bit in KBF register to generate an interrupt request.
3
KBE3
Keyboard line 3 Enable bit
Cleared to enable standard I/O pin.
Set to enable KBF. 3 bit in KBF register to generate an interrupt request.
2
KBE2
Keyboard line 2 Enable bit
Cleared to enable standard I/O pin.
Set to enable KBF. 2 bit in KBF register to generate an interrupt request.
1
KBE1
Keyboard line 1 Enable bit
Cleared to enable standard I/O pin.
Set to enable KBF. 1 bit in KBF register to generate an interrupt request.
0
KBE0
Keyboard line 0 Enable bit
Cleared to enable standard I/O pin.
Set to enable KBF. 0 bit in KBF register to generate an interrupt request.
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